men’s health

Aging not only affects a man’s fertility, the study found, but becoming a father late in life also increases the risk that the mother of the child will have complications during pregnancy and that the child will have health problems.

“For most men, it probably doesn’t make a lot of difference,” said Jorge Chavarro, the study’s senior author. “The men who are most likely to benefit are the men who are on the border — who have relatively low sperm count.”